Running a close second to the Hollywood baby boom is the must-have-dog trend. Some celebrities, like Britney Spears and Tori Spelling, do the dog-baby thing in tandem. But others -- such as Jessica Biel, Rihanna, Gisele BÃ¼ndchen and Paris Hilton -- are sticking with just their pup companions for now. Come meet some stars and their pampered pooches here!
Britney Spears and one of her little dogs -- could be Bit Bit, Lucky, Lacey, Snow White or some other name we don't know about.
STILL TO COME: Sienna Miller, Jessica Biel & more!